CN105946797B - A kind of electric vehicle lithium battery control system for identifying, method and electric vehicle - Google Patents
A kind of electric vehicle lithium battery control system for identifying, method and electric vehicle Download PDFInfo
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- CN105946797B CN105946797B CN201610394628.3A CN201610394628A CN105946797B CN 105946797 B CN105946797 B CN 105946797B CN 201610394628 A CN201610394628 A CN 201610394628A CN 105946797 B CN105946797 B CN 105946797B
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- microprocessor
- pipe unit
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- fingerprint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/25—Means to switch the anti-theft system on or off using biometry
- B60R25/252—Fingerprint recognition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
- H04L9/3228—One-time or temporary data, i.e. information which is sent for every authentication or authorization, e.g. one-time-password, one-time-token or one-time-key
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
- H04L9/3231—Biological data, e.g. fingerprint, voice or retina
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/30—Vehicles applying the vehicle anti-theft devices
- B60R2325/306—Motorcycles
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Lock And Its Accessories (AREA)
- Secondary Cells (AREA)
Abstract
A kind of electric vehicle lithium battery control system for identifying of present invention offer, method and electric vehicle, the system include：Fingerprint identification module, including fingerprint sensor, fingerprint recognition chip and first microprocessor, fingerprint sensor, fingerprint recognition chip and first microprocessor are sequentially connected；Battery control module, including the second microprocessor and power pipe unit, the second microprocessor are connect with first microprocessor, and dynamic encryption algorithm identical with first microprocessor is integrated in the second microprocessor, and the second microprocessor is connect with power pipe unit.The present invention in first microprocessor and the second microprocessor by integrating identical dynamic encryption algorithm, when ensure that user opens electric vehicle by fingerprint every time, the pulse train that first microprocessor is sent out is all different, and the pulse train can be accurately identified by the second microprocessor, then further control power pipe unit is opened, and effectively prevents conventional low and high level signal and the drawbacks of fixed pulse sequence is easy to crack.
Description
Technical field
The present invention relates to control technology for electric motor car fields, and in particular to a kind of electric vehicle lithium battery control system for identifying, side
Method and electric vehicle.
Background technology
Electric vehicle is generally referred to the locomotive that electric power is driving, and type is more, due to its have it is environmentally friendly, quick and conveniently
Good characteristics, be gradually well received by consumers, streets and lanes are found everywhere miscellaneous electric vehicle at home.
Universal with electric vehicle, the stolen problem of electric vehicle is also on the rise, therefore the antitheft problem of electric vehicle also day
Benefit is taken seriously.Currently, traditional electric vehicle is locked only with mechanical lock, and mechanical lock is easy to be pried open, or
Person carries out safety management by the power cord of electric door lock cut-out control system, and security performance is also very low, and burglar is easily found
Its short circuit is connected and electric vehicle can be driven away by the both threads of electric door lock.
Invention content
A kind of electric vehicle lithium battery control system for identifying of present invention offer, method and electric vehicle, effectively increase electric vehicle
Anti-theft performance, to solve the problems, such as that there are larger stolen risks for electric vehicle in the prior art.
In a first aspect, the present invention provides a kind of electric vehicle lithium battery control system for identifying, the system comprises：
Fingerprint identification module, the fingerprint identification module include fingerprint sensor, fingerprint recognition chip and the first microprocessor
Device, the fingerprint sensor are connect with the fingerprint recognition chip, and the fingerprint recognition chip connects with the first microprocessor
It connects；
Battery management module, the battery management module include the second microprocessor and power pipe unit, and described second is micro-
Processor is connect with the first microprocessor, wherein being integrated in second microprocessor and the first microprocessor phase
Same dynamic encryption algorithm, second microprocessor are also connect with the power pipe unit.
As the preferred embodiment of first aspect, the first microprocessor and second microprocessor are all made of at MCU
Manage device or dsp processor.
As the preferred embodiment of first aspect, the electric vehicle is by lithium battery power supply, and the lithium battery is by the power tube
Unit controls.
Second aspect, the present invention provide a kind of electric vehicle lithium battery identification control method, the method includes：
After first microprocessor receives the unlatching fingerprint image for opening power pipe unit, the unlatching fingerprint image is judged
Seem no consistent at least one fingerprint image sample of advance typing；
If consistent, the first microprocessor is sent to the second microprocessor passes through the calculated arteries and veins of dynamic encryption algorithm
Rush sequence；Pass through the content of the calculated pulse train of identical dynamic encryption algorithm and the arteries and veins in second microprocessor
Rush sequence content it is consistent when, second microprocessor controls the power pipe unit and opens, the power pipe unit control
The lithium battery power supply.
As the preferred embodiment of second aspect, the first microprocessor reception refers to for opening the unlatching of power pipe unit
After print image, before judging whether the unlatching fingerprint image is consistent at least one fingerprint image sample of advance typing, institute
The method of stating further includes：
After the first microprocessor receives the locking fingerprint image for locking the power pipe unit, the lock is judged
Whether consistent at least one fingerprint image sample of advance typing determine fingerprint image；
If consistent, the first microprocessor sends lock instruction to second microprocessor, makes described second micro-
Processor controls the power pipe unit locking, and the power pipe unit controls the lithium battery and stops power supply；Simultaneously also to institute
It states the second microprocessor and sends encrypted instruction, the encrypted instruction is used to indicate when next time the first microprocessor receives
When the unlatching fingerprint image, the first microprocessor and second microprocessor start to enable dynamic encryption algorithm.
As the preferred embodiment of second aspect, the dynamic encryption algorithm is used based on receive number as the multiple multiple of variable
Function is closed, wherein the receive number, which is the first microprocessor, receives the number for opening fingerprint image, and
When each first microprocessor receives the unlatching fingerprint image, the first microprocessor and second microprocessor
Receive number described in device synchronous recording.
As the preferred embodiment of second aspect, the unlatching fingerprint image and the locking fingerprint image are by fingerprint sensing
Device acquires, and is pre-processed by fingerprint recognition chip.
The third aspect, the present invention provide a kind of electric vehicle, and the electric vehicle includes the system described in above-mentioned first aspect.
As the preferred embodiment of the third aspect, the electric vehicle includes electric bicycle, battery-operated motor cycle, electrodynamic balance
Vehicle, electric vehicle, electric space vehicle, electric bus, electro-tricycle, electric unicycle, fuel oil power-assisted dual-purpose electric vehicle with
And electric swing car.
A kind of electric vehicle lithium battery control system for identifying of present invention offer, method and electric vehicle, by the first microprocessor
Identical dynamic encryption algorithm is integrated in device and the second microprocessor, when ensure that user opens electric vehicle by fingerprint every time,
The pulse train that first microprocessor is sent out is all different, and the pulse train can be accurately identified by the second microprocessor,
Then further control power pipe unit is opened, and effectively prevents conventional low and high level signal and fixed pulse sequence is easy to brokenly
The drawbacks of solution.The present invention effectively increases the anti-theft performance of electric vehicle, considerably increases the safety of electric vehicle.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of electric vehicle lithium battery control system for identifying provided in an embodiment of the present invention；
Fig. 2 is the flow chart that a kind of electric vehicle lithium battery provided in an embodiment of the present invention identifies control method.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention discloses a kind of electric vehicle lithium battery control system for identifying, shown referring to Fig.1, the system packet
It includes：Fingerprint identification module, including fingerprint sensor, fingerprint recognition chip and first microprocessor, wherein fingerprint sensor and finger
Line identification chip connects, and fingerprint recognition chip is connect with first microprocessor；Battery management module, including the second microprocessor and
Power pipe unit, the second microprocessor are connect with first microprocessor, wherein being integrated in the second microprocessor and first micro- place
The identical dynamic encryption algorithm of device is managed, the second microprocessor is also connect with power pipe unit.In addition, the electric vehicle is supplied by lithium battery
Electricity, lithium battery are controlled by power pipe unit.
Specifically, fingerprint sensor is for being acquired the fingerprint of user, and collected fingerprint image is converted into
It can be with identified electric signal.The electric signal for the representative fingerprint image that fingerprint recognition chip is used to transmit fingerprint sensor
It is amplified, the pretreatments such as noise reduction, compression of images, so that first microprocessor carries out further digital processing and identification.The
One microprocessor is used to store the fingerprint image sample of advance typing, and will refer to by the pretreated representative of fingerprint recognition chip
The electric signal of print image carries out feature extraction, is then compared, can also be calculated by dynamic encryption with fingerprint image sample
The signal for being transferred to the second microprocessor is encrypted in method.First microprocessor is micro- by connection realization and second
Signal transmission between processor.
Second microprocessor can by identical dynamic encryption algorithm to the signal by encryption that receives into
Row respective handling accurately identifies the content representated by the signal of first microprocessor transmission, to further realize to power tube
Unit accurately controls.For power pipe unit under the control of the second microprocessor, whether the lithium battery for controlling electric vehicle can be just
Often power supply.
Preferably, in the present embodiment, first microprocessor and the second microprocessor are all made of MCU processor or DSP processing
Device.
Entire fingerprint identification module is generally arranged at the car body front end of electric vehicle, and user can first pass through fingerprint sensor in advance
Fingerprint is acquired, collected fingerprint image is input in first microprocessor after the pretreatment of fingerprint recognition chip and is stored,
Save as fingerprint image sample.According to the use demand of user, fingerprint image sample can have multiple.
After electric vehicle comes to a complete stop, user needs to lock electric vehicle.After user correctly enters the fingerprint of oneself, the
One microprocessor identifies that the fingerprint image is consistent at least one fingerprint image sample, then sends a series of pulse train extremely
Second microprocessor, the second microprocessor identification after lock power pipe unit, i.e., will not to power pipe unit output drive signal,
Then power pipe unit can be stopped due to not having drive signal, further control lithium battery and stop power supply, to electric vehicle
It will be unable to travel.
When user needs to open electric vehicle, need to re-enter fingerprint.After user correctly enters the fingerprint of oneself, the
One microprocessor identifies that the fingerprint image is consistent at least one fingerprint image sample, then first microprocessor is to second micro- place
It manages device to send through the calculated pulse train of dynamic encryption algorithm, passes through identical dynamic encryption algorithm in the second microprocessor
When the content of calculated pulse train is consistent with the content of the pulse train, the second microprocessor control power pipe unit is opened
It opens, i.e., to power pipe unit output drive signal, then power pipe unit start-up operation further controls lithium battery normal power supply,
To which electric vehicle can travel.
A kind of electric vehicle lithium battery control system for identifying provided in an embodiment of the present invention, by first microprocessor and
Identical dynamic encryption algorithm is integrated in two microprocessors, when ensure that user opens electric vehicle by fingerprint every time, first is micro-
The pulse train that processor is sent out is all different, and the pulse train can be accurately identified by the second microprocessor, then into
One step controls power pipe unit and opens, and effectively prevents conventional low and high level signal and fixed pulse sequence is easy to the disadvantage cracked
End, effectively increases the anti-theft performance of electric vehicle, considerably increases the safety of electric vehicle.
The embodiment of the present invention also provides a kind of electric vehicle lithium battery identification control method, with reference to shown in Fig. 2, this method packet
It includes：
After first microprocessor receives the unlatching fingerprint image for opening power pipe unit, judge that opening fingerprint image is
It is no consistent at least one fingerprint image sample of advance typing；
If consistent, first microprocessor is sent to the second microprocessor passes through the calculated pulse sequence of dynamic encryption algorithm
Row；In content and the pulse train of second microprocessor by the calculated pulse train of identical dynamic encryption algorithm
When holding consistent, the second microprocessor controls power pipe unit and opens, and the power pipe unit controls the lithium battery power supply.
On the basis of the above embodiments, the unlatching fingerprint image for opening power pipe unit is received in first microprocessor
As after, judge to open fingerprint image it is whether consistent at least one fingerprint image sample of advance typing before, this method is into one
Step includes：
After first microprocessor receives the locking fingerprint image for locking power pipe unit, judge that locking fingerprint image is
It is no consistent at least one fingerprint image sample of advance typing；
If consistent, first microprocessor sends lock instruction to the second microprocessor, and the second microprocessor is made to control work(
Rate pipe unit locks, and the power pipe unit controls the lithium battery and stops power supply；It also sends and adds to the second microprocessor simultaneously
Close instruction, encrypted instruction are used to indicate when first microprocessor receives and opens fingerprint image next time, first microprocessor
Start to enable dynamic encryption algorithm with the second microprocessor.
Specifically, the dynamic encryption algorithm described in this method uses the MULTIPLE COMPOSITE letter for variable based on receive number
Number, wherein the receive number, which is first microprocessor, receives the number for opening fingerprint image, and at every time first micro- place
When reason device receives unlatching fingerprint image, the receive number of first microprocessor and the second microprocessor synchronous recording.Usually,
When the receive number is added up to a certain extent, clearing processing can be done, then first microprocessor and the second microprocessor are opened again
Beginning synchronous recording.
It is acquired by fingerprint sensor in addition, opening fingerprint image and locking fingerprint image, and passes through fingerprint recognition chip
It is pre-processed.
It should be noted that the locking fingerprint image described in the present embodiment refers to after electric vehicle comes to a complete stop, user needs
The fingerprint image inputted when electric vehicle is locked, the unlatching fingerprint image refer to when user needs to open electric vehicle
The fingerprint image of input.
A kind of electric vehicle lithium battery provided in an embodiment of the present invention identifies control method, by first microprocessor and the
Identical dynamic encryption algorithm is integrated in two microprocessors, when ensure that user opens electric vehicle by fingerprint every time, first is micro-
The pulse train that processor is sent out is all different, and the pulse train can be accurately identified by the second microprocessor, then into
One step controls power pipe unit and opens, and effectively prevents conventional low and high level signal and fixed pulse sequence is easy to the disadvantage cracked
End, effectively increases the anti-theft performance of electric vehicle, considerably increases the safety of electric vehicle.
The embodiment of the present invention also provides a kind of electric vehicle, which includes the electric vehicle lithium electricity described in above-described embodiment
Pond control system for identifying.
Further, the electric vehicle includes electric bicycle, battery-operated motor cycle, electrodynamic balance vehicle, electric vehicle, electricity
Dynamic field vehicle, electric bus, electro-tricycle, electric unicycle, fuel oil power-assisted dual-purpose electric vehicle and electric swing car.
A kind of electric vehicle provided in an embodiment of the present invention, anti-theft performance are effectively improved, and safety greatly improves.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of electric vehicle lithium battery control system for identifying, which is characterized in that the system comprises：
Fingerprint identification module, the fingerprint identification module include fingerprint sensor, fingerprint recognition chip and first microprocessor, institute
It states fingerprint sensor to connect with the fingerprint recognition chip, the fingerprint recognition chip is connect with the first microprocessor；
Battery management module, the battery management module include the second microprocessor and power pipe unit, second microprocessor
Device is connect with the first microprocessor, wherein being integrated in second microprocessor identical with the first microprocessor
Dynamic encryption algorithm, second microprocessor are also connect with the power pipe unit；
Wherein, after the first microprocessor receives the locking fingerprint image for locking the power pipe unit, described in judgement
Whether consistent at least one fingerprint image sample of advance typing lock fingerprint image；If consistent, first microprocessor
Device sends lock instruction to second microprocessor, and second microprocessor is made to control the power pipe unit locking, institute
It states power pipe unit control lithium battery and stops power supply；Simultaneously also encrypted instruction, the encryption are sent to second microprocessor
Instruction is used to indicate when next time the first microprocessor receives the unlatching fingerprint image for opening the power pipe unit
When picture, the first microprocessor and second microprocessor start to enable dynamic encryption algorithm.
2. system according to claim 1, which is characterized in that the first microprocessor and second microprocessor are equal
Using MCU processor or dsp processor.
3. system according to claim 1, which is characterized in that the electric vehicle by lithium battery power supply, the lithium battery by
The power pipe unit control.
4. a kind of electric vehicle lithium battery identifies control method, based on the system described in any one of the claims 1 to 3,
It is characterized in that, the method includes：
After first microprocessor receives the locking fingerprint image for locking power pipe unit, judge that the locking fingerprint image is
It is no consistent at least one fingerprint image sample of advance typing；If consistent, the first microprocessor is to the second microprocessor
Device sends lock instruction, and second microprocessor is made to control the power pipe unit locking, and the power pipe unit controls lithium
Battery stops power supply；Encrypted instruction also is sent to second microprocessor simultaneously, the encrypted instruction is used to indicate when described
First microprocessor receives the unlatching fingerprint image next time when, the first microprocessor and second microprocessor
Start to enable dynamic encryption algorithm；
After the first microprocessor receives the unlatching fingerprint image for opening the power pipe unit, judge that the unlatching refers to
Whether print image is consistent at least one fingerprint image sample of advance typing；The first microprocessor is to described if consistent
Second microprocessor, which is sent, passes through the calculated pulse train of dynamic encryption algorithm；Pass through in second microprocessor identical
When the content of the calculated pulse train of dynamic encryption algorithm is consistent with the content of the pulse train, second microprocessor
It controls the power pipe unit to open, the power pipe unit controls the lithium battery power supply.
5. according to the method described in claim 4, it is characterized in that, the dynamic encryption algorithm is used based on receive number as change
The MULTIPLE COMPOSITE function of amount receives the unlatching fingerprint image wherein the receive number is the first microprocessor
Number, and when each first microprocessor receives the unlatching fingerprint image, the first microprocessor and described
Receive number described in second microprocessor synchronous recording.
6. according to the method described in claim 4, it is characterized in that, the unlatching fingerprint image and the locking fingerprint image are equal
It is acquired by fingerprint sensor, and is pre-processed by fingerprint recognition chip.
7. a kind of electric vehicle, which is characterized in that the electric vehicle includes the system described in any one of the claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610394628.3A CN105946797B (en) | 2016-06-06 | 2016-06-06 | A kind of electric vehicle lithium battery control system for identifying, method and electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610394628.3A CN105946797B (en) | 2016-06-06 | 2016-06-06 | A kind of electric vehicle lithium battery control system for identifying, method and electric vehicle |
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| CN105946797A CN105946797A (en) | 2016-09-21 |
| CN105946797B true CN105946797B (en) | 2018-08-17 |
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| CN110027508A (en) * | 2018-01-11 | 2019-07-19 | 南昌欧菲生物识别技术有限公司 | Recognition methods, identifying system and electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006256541A (en) * | 2005-03-18 | 2006-09-28 | Yamaha Corp | Cellular phone on-vehicle system, control method of cellular phone on-vehicle system, control program, and recording medium |
| CN201438327U (en) * | 2009-04-04 | 2010-04-14 | 广州中沙桥汽车用品有限公司 | Anti-theft alarm device |
| CN202483297U (en) * | 2012-02-06 | 2012-10-10 | 青岛澳柯玛电动科技有限公司 | Fingerprint electric car |
| CN104029654B (en) * | 2014-05-30 | 2018-01-05 | 江苏大学 | Automobile anti-theft method and burglary-resisting system based on fingerprint key encryption technology |
| CN105292058A (en) * | 2015-11-30 | 2016-02-03 | 贵州大学 | Intelligent vehicle anti-theft system applying mobile phone fingerprint identification |
| CN105564538B (en) * | 2016-01-25 | 2018-11-02 | 张鑫 | A kind of motorcycle parks anti-theft device |
| CN205706595U (en) * | 2016-06-06 | 2016-11-23 | 西安后羿半导体科技有限公司 | A kind of electric vehicle lithium battery control system for identifying and electric motor car |
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Effective date of registration: 20180130 Address after: Caotan economic and Technological Development Zone, eco industrial park in Shaanxi city of Xi'an province is 710000 Jilu No. 8928 Applicant after: Xi'an Hua Yi Electronic Limited by Share Ltd Address before: Yanta District 710054 Shaanxi city of Xi'an province Yong song Road No. 18 Qiutao Pavilion 1 room 40501 Applicant before: XI'AN HOOYI SEMICONDUCTOR TECHNOLOGY CO., LTD. |
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Address after: 710000 No. 8928, Shang Ji Road, an ecological industrial park in Xi'an, Shaanxi economic and Technological Development Zone Patentee after: Huayi Microelectronics Co., Ltd. Address before: 710000 No. 8928, Shang Ji Road, an ecological industrial park in Xi'an, Shaanxi economic and Technological Development Zone Patentee before: Xi'an Hua Yi Electronic Limited by Share Ltd |